Waint until visit finishes

I have a problem with my test, basically I have to visit an specific page, but this action take more than 10 seconds to execute, and not matter what I do, I don't know to wait until, here's my test.

feature 'Basekit settings' do
    before(:each) do
       clean_and_seed_db
       create_roles
    end

    describe 'Setup Basekit credentials', js:true do
        let(:user) { FactoryGirl.build(:user) }
        let(:registered_user) { FactoryGirl.create(:user, :with_sub_referrals, verify: true) }
        let(:product) {  Product.where(:alias => 'basekit').first }
        @current_credentials = nil
        before {
          begin
              login_with(registered_user.email, registered_user.password)
              add_product(product)
              visit_basekit_setup
              @current_credentials = registered_user.accounts.first.product_credentials.first
          rescue Exception
             save_and_open_page
          end
        }
        it { expect(@current_credentials).to_not be_nil }
        it { expect(response.status).to be 302 }
        it { expect(expect(response.header['location']).to match(current_credentials.value[:domain])) }
   end
end